Trying to catch up...

I asked my husband if I should do the most recent classwork first or attempt to catch up chronologically. He said I should attempt to catch up chronologically, so that I will fully understand the covered material. so I started with module 1. since I missed the first class. I defined the definitions, i took notes of the PowerPoint. I was good and studious. I made it to module 2. I looked over all that material. I read chapter 4 of the textbook. I downloaded the data for the "active learning exercise."

I had bought the textbook with the 60 day trial on Monday. On Tuesday during my dinner break between work and the school board meeting, i installed it. I wasn't around when it finished installing, but i assumed it did OK because it seems to be installed. Today I dug the envelope it was in out of the trash to find the registration code. (oops). typed it in. was conveniently able to register with what appeared to be no problems.

and then I go to open ArcCatalog and I get this message. "ArcGIS Desktop has encountered a serious application error and is unable to continue."

It asks me if I would like to send an error report. And it doesn't open.

I have never installed any GIS software on this particular computer before. This is my husband's old computer.